Method and system for radiotherapy treatment

a radiotherapy treatment and treatment method technology, applied in the field of radiotherapy treatment methods and systems, can solve the problems of increasing the sensitiveness of treatment to setup errors and organ motion, the limitations of radiation dose that should be followed, and the inability to correct internal rotation and tilt angle, etc., to achieve the effect of reducing radiation administration and reducing radiation administration to the rectum

Inactive Publication Date: 2007-12-13
SCANFLEX MEDICAL
View PDF50 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] The methods and systems of the present invention are advantageous in reducing radiation administration to areas other than the target organ, particularly in reducing radiation administration to the rectum. The methods and systems ma...

Problems solved by technology

There are, however, radiation dose limitations that should be followed in order to avoid complications in dose sensitive organs, including, but not limited to, the rectum, the bladder and the hips.
Additionally, an internal rotation and tilt angle sometimes occurs which cannot be corrected, even by use of markers in the prostate.
In turn, such treatments have become increasingly sensitive to setu...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for radiotherapy treatment
  • Method and system for radiotherapy treatment
  • Method and system for radiotherapy treatment

Examples

Experimental program
Comparison scheme
Effect test

example

[0024] Ten patients with proven biopsy and localized adenocarcinoma of the prostate are included in the present study. The patients receive 4 gold markers in the prostate, inserted with needles through the perineum. The gold markers are spread out in the prostate to ensure a satisfying 3D positioning. The ten patients are treated with proton beam therapy of 20 Gy given in four fractions to the prostate alone followed by X-ray therapy to a prescribed dose of 50 Gy in 2 Gy fractions five days per week to the entire prostate, including the seminal vesicles.

[0025] For the proton beam therapy, the patients are immobilized with a specially constructed fixation couch on which a custom-shaped vacuum pillow is placed for individual fixation. The couch also contains support for the legs and a Lucite® (polymethylmethacrylate) plate in the perineum for standardizing the distance from the skin to the prostate. The patients are positioned in lithotomy position and the couch allows the patients t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method for radiotherapy treatment of a target organ in the vicinity of the rectum in an individual comprises withdrawing the rectum in a dorsal direction to increase a distance between the rectum and the target organ, and administering a therapeutical dose of radiation to the target organ while the rectum is in the withdrawn position. In one embodiment, the target organ is the prostate. A system for use in radiotherapy treatment of a target organ in the vicinity of the rectum in an individual comprises a cylindrical rectal rod adapted for insertion into a rectum of the individual, and a support surface operable to support an individual in a lithotomy position to receive a beam of radiation to the target organ. The system may further include a radiation source for administering a beam of radiation to the target organ of an individual.

Description

FIELD OF THE INVENTION [0001] The present invention is directed to methods and systems for radiotherapy treatment of a target organ in the vicinity of the rectum in an individual, for example for treatment of prostate cancer, cervical cancer, uterine cancer or the like, and more specifically, the present invention is directed to such methods and systems wherein the rectum is withdrawn in a dorsal direction to reduce radiation administration to non-target areas, and particularly to reduce radiation administration to the rectum. BACKGROUND OF THE INVENTION [0002] External beam radiotherapy (EBRT) is widely accepted as a curative treatment modality for localized prostate cancer. See, for example, Holupka et al, “Ultrasound image fusion for external beam radiotherapy for prostate cancer,”Int. J Oncology Biol. Phys., 1996:35:975-84. However, in order to cure localized cancer of the prostate with radiotherapy, a high dose is needed. Different escalation schedules are used world wide. Gene...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61N5/00
CPCA61N5/1049A61N2005/1094A61N2005/1087A61N5/1081
Inventor ISACSSON, ULFNILSSON, KRISTINAASPLUND, STEFAN
Owner SCANFLEX MEDICAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap